I touch the tv antenna and get a good picture. How do I dup

[meirman]

I touch the tv antenna and get a good picture. How do I duplicate
that?

I've wondered about that for years, with many TVs. I think I tried
connecting a capacitor between the rabbit ear and a group, or using a
jumper to connect a soda pop can.

Does anyone know?

Meirman

If emailing, please let me know whether
or not you are posting the same letter.

Change domain to erols.com, if necessary.

 

[Kasper]

Hey

my best guess are you are working af a big fine antenne.... i do not think
the gnd connection have anything to do with it.... if it has, then try to
gnd yor tv or antennecable in the schield

--
Mvh Kasper

Tjek Elektronik Chatten pĺ -> http://www.angelfire.com/alt/elektronik/
"meirman" <meirman@invalid.com> skrev i en meddelelse
news:0tofgv4pu98igvg90tsf8jju9ith1hhapt@4ax.com...

I touch the tv antenna and get a good picture. How do I duplicate
that?

I've wondered about that for years, with many TVs. I think I tried
connecting a capacitor between the rabbit ear and a group, or using a
jumper to connect a soda pop can.

Does anyone know?

Meirman

If emailing, please let me know whether
or not you are posting the same letter.

Change domain to erols.com, if necessary.

 

[dB]

meirman <meirman@invalid.com> wrote in message news:<0tofgv4pu98igvg90tsf8jju9ith1hhapt@4ax.com>...

I touch the tv antenna and get a good picture. How do I duplicate
that?

I've wondered about that for years, with many TVs. I think I tried
connecting a capacitor between the rabbit ear and a group, or using a
jumper to connect a soda pop can.

Your indoor antenna is obviously inadequate (as many, perhaps most, are).

Use a proper, outdoor, antenna mounted as high as possible.

 

[dB]

meirman <meirman@invalid.com> wrote in message news:<eocigvoe5lu1q772cit67st0ush2r8ujla@4ax.com>...

In sci.electronics.basics on 7 Jul 2003 01:07:58 -0700
dmb06851@yahoo.com (dB) posted:

meirman <meirman@invalid.com> wrote in message news:<0tofgv4pu98igvg90tsf8jju9ith1hhapt@4ax.com>...
I touch the tv antenna and get a good picture. How do I duplicate
that?

I've wondered about that for years, with many TVs. I think I tried
connecting a capacitor between the rabbit ear and a group, or using a
Yes, this was meant to be ground.

jumper to connect a soda pop can.



Your indoor antenna is obviously inadequate (as many, perhaps most, are).

Use a proper, outdoor, antenna mounted as high as possible.

I know I could use a better antenna, but that will not satisfy my
curiosity, Also I place the tv in many locations and routing the
antenna wire would be difficut, especially if I and my family are to
avoid tripping on it. But my curiosity is most important. I'm
interested in what the duplicate would be for my touching the antenna.
I think mvh is right that a ground doesn't help. Would a very large
sheet of aluminum foil be something like me? Does it matter that I am
thick and it is thin. I"m not made of metal either. Would a
watermelon be something like me?


Meirman

When you touch the antenna you are changing its characteristics,
specifically its capacity, quite dramatically. To further complicate
the issue, since your body is resistive, you are adding a lossy
capacitor to the antenna system.

If changing the position of the cable makes much difference I suspect
that the cable is not well matched to the antenna - not uncommon.

 

[John Fields]

On Mon, 07 Jul 2003 04:51:53 -0400, meirman <meirman@invalid.com> wrote:

In sci.electronics.basics on 7 Jul 2003 01:07:58 -0700
dmb06851@yahoo.com (dB) posted:

meirman <meirman@invalid.com> wrote in message news:<0tofgv4pu98igvg90tsf8jju9ith1hhapt@4ax.com>...
I touch the tv antenna and get a good picture. How do I duplicate
that?

I've wondered about that for years, with many TVs. I think I tried
connecting a capacitor between the rabbit ear and a group, or using a
Yes, this was meant to be ground.

jumper to connect a soda pop can.



Your indoor antenna is obviously inadequate (as many, perhaps most, are).

Use a proper, outdoor, antenna mounted as high as possible.

I know I could use a better antenna, but that will not satisfy my
curiosity, Also I place the tv in many locations and routing the
antenna wire would be difficut, especially if I and my family are to
avoid tripping on it. But my curiosity is most important. I'm
interested in what the duplicate would be for my touching the antenna.

---
What you're doing when you touch the antenna is increasing the amplitude
of the signal going ito the TV. To duplicate that without a better
antenna would require you to amplify the signal coming out of the
antenna before sending it into the TV.

http://www.citycom.gr/electronics/projects/antampl/tvamlifier_engl.htm

---

I think mvh is right that a ground doesn't help. Would a very large
sheet of aluminum foil be something like me?

---
Are you shiny?
---

Does it matter that I am thick and it is thin.

---
Yes, it matters that you're thick. That makes it more difficult to
communicate with you.
---

I"m not made of metal either. Would a
watermelon be something like me?

---
That would depend on how thick it was.

--
John Fields

 

[N. Thornton]

meirman <meirman@invalid.com> wrote in message news:<eocigvoe5lu1q772cit67st0ush2r8ujla@4ax.com>...

Would a watermelon be something like me?

What a classic quote

Regards, NT

 

[Si Ballenger]

On 12 Jul 2003 09:33:39 -0700, richardgrise@yahoo.com (Rich
Grise) wrote:

Michael Gray <fleetg@newsguy.com> wrote in message news:<h0ivgvg6q49uvu8igj4hj3b52vup7vb588@4ax.com>...
You would get the same effect by connecting the aerial to a mass of
salty water about your mass.

I'd think that the geometry of the object (bucket of water, zucchini,
giant panda) would be more significant than its actual mass. A piece
of magnet wire with a mass of a few grams could make the antenna
as perfect as possible for the conditions, if it's the right length
and orientation. There's a book, "The ARRL Antenna Book" I think,
which would explain this a lot better than I can.

We always use to put aluminum foil on the rabbit ears.

 

[John Fields]

On Sat, 12 Jul 2003 19:39:38 GMT, shb*NO*SPAM*@comporium.net (Si
Ballenger) wrote:

On 12 Jul 2003 09:33:39 -0700, richardgrise@yahoo.com (Rich
Grise) wrote:

Michael Gray <fleetg@newsguy.com> wrote in message news:<h0ivgvg6q49uvu8igj4hj3b52vup7vb588@4ax.com>...
You would get the same effect by connecting the aerial to a mass of
salty water about your mass.

I'd think that the geometry of the object (bucket of water, zucchini,
giant panda) would be more significant than its actual mass. A piece
of magnet wire with a mass of a few grams could make the antenna
as perfect as possible for the conditions, if it's the right length
and orientation. There's a book, "The ARRL Antenna Book" I think,
which would explain this a lot better than I can.

We always use to put aluminum foil on the rabbit ears.

---
We always wear it on our heads when we're watching TV so the
psychotronic rays from the commercials won't make us go out and buy
stuff. We ran out of aluminum foil the other day, though, because we
were wearing it when a Reynold's Wrap commercial came on.

--
John Fields

 

[meirman]

In sci.electronics.basics on 7 Jul 2003 12:53:40 -0700
richardgrise@yahoo.com (Rich Grise) posted:

meirman <meirman@invalid.com> wrote in message news:<eocigvoe5lu1q772cit67st0ush2r8ujla@4ax.com>...

I know I could use a better antenna, but that will not satisfy my
curiosity, Also I place the tv in many locations and routing the
antenna wire would be difficut, especially if I and my family are to
avoid tripping on it.

That's not a problem - run it up over doorframes & such. Or you
could suspend an antenna from the ceiling, and run the wires along
the ceiling and down the wall.

Just not worth the effort since I move it around,

But my curiosity is most important. I'm

and the curiosity.

interested in what the duplicate would be for my touching the antenna.
I think mvh is right that a ground doesn't help. Would a very large
sheet of aluminum foil be something like me?

I'll try some of these things, probably all of them. Thanks a lot.

Quite similar, yes.

Does it matter that I am
thick and it is thin.

a little bit.

I"m not made of metal either. Would a
watermelon be something like me?

Probably, especially if you salted it a little bit.

What's happening is that your body actually becomes part of the
antenna. Its important characteristic is its resonant frequency,
and its impedance at the connection. These are mainly based
on the length of the conductor. You could experiment with
various lengths of additional wire, maybe 1m, 120 cm, 150 cm,
and so on, and see what it does to the reception.

Meirman

Good Luck!
Rich

Meirman

If emailing, please let me know whether
or not you are posting the same letter.

Change domain to erols.com, if necessary.

 

[meirman]

In sci.electronics.basics on 8 Jul 2003 14:16:21 -0700
bigcat@meeow.co.uk (N. Thornton) posted:

meirman <meirman@invalid.com> wrote in message news:<eocigvoe5lu1q772cit67st0ush2r8ujla@4ax.com>...

Would a watermelon be something like me?

What a classic quote

And you have a great sense of humor.

Regards, NT

Meirman

If emailing, please let me know whether
or not you are posting the same letter.

Change domain to erols.com, if necessary.

 

[N. Thornton]

meirman <meirman@invalid.com> wrote in message news:<godhhvon55ksttj9vghhrlo3k2i22joqcn@4ax.com>...

In sci.electronics.basics on 8 Jul 2003 14:16:21 -0700
bigcat@meeow.co.uk (N. Thornton) posted:

Would a watermelon be something like me?

What a classic quote

And you have a great sense of humor.

ty